Space-band-releasing means for typographical assembling machines



Nov. 29, 1927. 651,213

G. E. MARLATT SPACE BAND RELEASING MEANS FOR TYPOGRAPHICAL ASSEMBLING MACHINES Filed NOV. 13, 1926 Patented Nov. 29, 1927.

PATE F I enonen a. Ma-snare, or rAsADEnA, CALIFORNIA.

sPACE-BAND-RELEAS'ING MEANS ron TYPOGRAPHICAL AssEMBLrNe MACHINES.

' 'a'ppiicatita'rueaNovember 13,1926. Seria1'No.148,303.

My inventionre'latesto typographical Inachinesof the kindin "whichcirculati'n-g matrices are released b'y keyboard means from a storage magazine and assembled into a line representing words, the words being separated by expansible spacers (commonly desgnated sp'acebands) linotype class, showing my improvement applied thereto;

Fig. 2v is an elevation of the spaceband box separate from the machine;

Fig. 3 Fig. 2.

Figs. 4 and 5 represent a spaceloanch Spaceband escapement-s as heretofore em- 11 loyed involve lifting or otherwise displacing the spacebands. preliminary-to their actual release, with power-driven cam means interposed between the releaslng key and the escapement in order that the releasing key may have a light touch. My present improvement contemplates an escapement sufficiently sensitive to'permit of a direct connection between the releasing key and the escapement, thus eliminating such interruptions as are attributable to the improper functioning of the usual power driven devices; incidentally I provide an escapement more visible and accessible than those in common use.

Referring to the drawings: The spaceband wedge S has the usual central recess S in i which the sleeve S is fitted. At the lower end of the wedge this recess is of sufficient depth to permit a stopping and releasing pawl to enter therein, and in the present invention is employed for use in connection with such pawls. In usual manner the spacebands are suspended by means of their lugs S" from a pair of rails B on facing inner sides of the channeled box B, and when released they swing forward into and drop through a channel O and thence into the channeled assembler A in common with the matrices X. In the present invention the is a section on the line 3 3 of upper end of the foremost spaceband ishindered from entering the channel C by reason of itsengagemen't with=a shoulder D"' provided on opposite sides of an adjustable finember B rigidly secured by means of a bracket 13 to the box B. The space between thesliou'lders B and the ends of the rails 13 is suiiicient to permit the spaceband lugs -S""to passtherethrough when the spacebands swing :i'oiwvard and their lower ends enter the channel C; but when held in angular relation to the channel C-the lugs 8* bridge the offset distance between the shoulders B and rails B lVhen the escapement parts are at rest a forward pawl D serves to hold the spa'cebands in their angular position, and as this forward pawl D is retracted to release a foremost spaceband, a rear pawl E enters betweenvthe first and second spacebands, clearing in the groove S The two pawls are interconnected for reciprocating movement in opposite directions, and the weight of the operating connections leading from the operating key K serves to retract the rear pawl and place the forward pawl in position to be engaged by each successive foremost spaceband following the release of a preceding spaceband. Structurally, the escapement is so designed as to conform .to the established measurement between the lower ends of the spacebands and the elevator A when in its elevated position. The rear pawl E is aprojection from a pawl-op crating lever G pivoted on a shaft G supported in opposite walls of the box B; the

lever H from which the forward pawl D projects is centrally pivoted on a'shaft H likewise supported in the walls of the box B. This centrally pivoted lever is hinge= connected with the operating lever G by means of a hinge-pin H This construction is such that when the operating lever G is actuated the two pawls will reciprocate in opposite directions. The pawl end D of the lever H clears through an opening G in the lever G. The operating lever G is offset as at G to clear the front wall of the box B, and returns to a position in alinement with the pawls in order to have a balanced action when actuated. It is connected by means of a link I to the rear end of a centrally-pivoted key lever J. The upper end of the link I is provided with a return bend occupied by an end-angle G of the lever G, a hingepinYI serving to connect this angle with the return bend of the link I. As thus connected it will be apparent that when the key K is depressed, reciprocating movement will be imparted to the escapement pawls and .a spaceband will be released to and through the channel leading to the assembler.

Having thus described the construction and operation of my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a typographical assembling machine, combination with spacebands each having a recess in the lower end thereof and a storage box for said spacebands, a pair of reciprocal' J; pawls to co'opcrate with the rece in said spacebands for the pm'pose of controlling); the release of said spacchands from said storage b( H 2. In a t y l ogi'apliic;il assembling machine, combination with s iacebands. a storage box therefor, and a pair of reciprocating pawls for controlling the release of said space- In a typographical assembling machine,

combination, spacebands, a storage box therefor, a reciprocating first pawl movable from and to a position in front of each successive first spaceband in said box for permitting the escape thereof, and a reciprocating'second pawl. movable to position in front of each successive second spaceband said ho prelin'iinz-u'y to the escape of said first spacehand, whereby only one at a time of said sparehands may be permittedto escape from said storage box. I

Signed at Pasadena, Los Angeles County, California, this 19th day of October, 1926.

' GEORGE E. MARLATT. 

